diff --git a/backends/ursa.js b/backends/ursa.js
index fdbeae1..e22989d 100644
--- a/backends/ursa.js
+++ b/backends/ursa.js
@@ -3,7 +3,7 @@
 var PromiseA = require('bluebird');
 var path = require('path');
 var fs = PromiseA.promisifyAll(require('fs'));
-var cutils = PromiseA.promisifyAll(require('crypto-utils-ursa'));
+var cutils = PromiseA.promisifyAll(require('../lib/crypto-utils-ursa'));
 //var futils = require('letsencrypt-forge/lib/crypto-utils');
 var requestAsync = PromiseA.promisify(require('request'));
 var lef = PromiseA.promisifyAll(require('letsencrypt-forge'));
diff --git a/index.js b/index.js
index 2d6324e..32fa3e0 100644
--- a/index.js
+++ b/index.js
@@ -44,14 +44,14 @@ LE.create = function (backend, defaults, handlers) {
       // GET /.well-known/acme-challenge/{{challengeKey}} should return {{tokenValue}}
       throw new Error("handlers.setChallenge or defaults.webrootPath must be set");
     }
-    handlers.setChallenge = require('lib/default-set-challenge');
+    handlers.setChallenge = require('./lib/default-handlers').setChallenge;
   }
   if (!handlers.removeChallenge) {
     if (!defaults.webrootPath) {
       // GET /.well-known/acme-challenge/{{challengeKey}} should return {{tokenValue}}
       throw new Error("handlers.setChallenge or defaults.webrootPath must be set");
     }
-    handlers.removeChallenge = require('lib/default-remove-challenge');
+    handlers.removeChallenge = require('./lib/default-handlers').remove-Challenge;
   }
   if (!handlers.agreeToTerms) {
     if (defaults.agreeTos) {
diff --git a/crypto-utils-ursa.js b/lib/crypto-utils-ursa.js
similarity index 100%
rename from crypto-utils-ursa.js
rename to lib/crypto-utils-ursa.js
diff --git a/lib/default-handlers.js b/lib/default-handlers.js
index 88ed6b4..4becc64 100644
--- a/lib/default-handlers.js
+++ b/lib/default-handlers.js
@@ -1,5 +1,37 @@
 'use strict';
 
+var fs = require('fs');
+var path = require('path');
+
 module.exports.agreeToTerms = function (args, agree) {
-  agree(args.agreeTos || args.agree);
+  agree(args.agreeTos);
+};
+
+module.exports.setChallenge = function (args, challengePath, keyAuthorization, done) {
+  //var hostname = args.domains[0];
+  var mkdirp = require('mkdirp');
+
+  // TODO should be args.webrootPath
+  mkdirp(path.join(args.webrootPath, challengePath), function (err) {
+    if (err) {
+      done(err);
+      return;
+    }
+
+    fs.writeFile(path.join(args.webrootPath, challengePath), keyAuthorization, 'utf8', function (err) {
+      done(err);
+    });
+  });
+};
+
+module.exports.getChallenge = function (args, key, done) {
+  //var hostname = args.domains[0];
+
+  fs.readFile(path.join(args.webroot, key), 'utf8', done);
+};
+
+module.exports.removeChallenge = function (args, key, done) {
+  //var hostname = args.domains[0];
+
+  fs.unlinkSync(path.join(args.webroot, key), done);
 };
diff --git a/lib/default-remove-challenge.js b/lib/default-remove-challenge.js
deleted file mode 100644
index 1aedfdd..0000000
--- a/lib/default-remove-challenge.js
+++ /dev/null
@@ -1,10 +0,0 @@
-'use strict';
-
-var path = require('path');
-var fs = require('fs');
-
-module.exports = function (args, key, done) {
-  //var hostname = args.domains[0];
-
-  fs.unlinkSync(path.join(args.webroot, key), done);
-};
diff --git a/lib/default-set-challenge.js b/lib/default-set-challenge.js
deleted file mode 100644
index 4aec345..0000000
--- a/lib/default-set-challenge.js
+++ /dev/null
@@ -1,21 +0,0 @@
-'use strict';
-
-var fs = require('fs');
-var path = require('path');
-
-module.exports = function (args, challengePath, keyAuthorization, done) {
-  //var hostname = args.domains[0];
-  var mkdirp = require('mkdirp');
-
-  // TODO should be args.webrootPath
-  mkdirp(path.join(args.webrootPath, challengePath), function (err) {
-    if (err) {
-      done(err);
-      return;
-    }
-
-    fs.writeFile(path.join(args.webrootPath, challengePath), keyAuthorization, 'utf8', function (err) {
-      done(err);
-    });
-  });
-};
diff --git a/package.json b/package.json
index 4255ed2..bc441d3 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,9 @@
   },
   "dependencies": {
     "bluebird": "^3.0.6",
+    "mkdirp": "^0.5.1",
     "pyconf": "^1.0.0",
+    "request": "^2.67.0",
     "safe-replace": "^1.0.0",
     "serve-static": "^1.10.0"
   }